Yes, the default for "purge oldest volume" is no.

So you have just two volumes in this pool. As Kern said "Yes, there can be
typically a few seconds delay between when a volume is chosen for use and
when it expires." and this could be the issue you are facing.

Maybe another thing additionally Josh's suggestion that could help you to
avoid this problem. I'm talking about having an admin job running after Th
backup job to do the prune instead of having the "AutoPrune = yes" configured.
Futhermore, this way can make your backups go faster.

I think Bacula's recycling volume algorithm is working correctly and you
are facing this problem because of your "volume use duration" time
configured. Try to set this value somewhat closer to the time that you want
the volume be available for your backup jobs. You can do this based on your
last time written values for these volumes.

Best regards,
Ana

On Sat, Oct 18, 2014 at 5:57 AM, Giuseppe Vitillaro <giuse...@vitillaro.org>
wrote:

>  On Friday 17 October 2014 21:41:49 Ana Emília M. Arruda wrote:
>
> > Hi Giuseppe,
>
> >
>
> > Yes, this could happen if bacula couldn't find a reciclable volume and
> you
>
> > have the "purge oldest volume = yes" directive configured and this is,
> for
>
> > Bacula, the oldest volume. The purge oldest volume doesn't respect the
>
> > volume retention period.
>
> >
>
> > Best regards,
>
> > Ana
>
> I was almost sure, but I just "grepped" all
>
> my bacula conf file.
>
>
>
> I'm sure the directive "purge oldest volume" is not present
>
> in my files, so the default, for what I can read, should be
>
> a plain "no".
>
>
>
> Correct?
>
>
>
> This is the definition of my "Incr" pool
>
>
>
>
>
> Pool {
>
> Name = Incr
>
> Pool Type = Backup
>
> Recycle = yes
>
> Recycle Oldest Volume = yes
>
> Recycle Current Volume = no
>
> AutoPrune = yes # Prune expired volumes
>
> Maximum Volumes = 2
>
> Volume Use Duration = 7 days # 1 week
>
> Volume Retention = 6 days # 1 week - 1
>
> }
>
>
>
>
>
> G. Vitillaro.
>
>
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